jQuery md5加密插件jQuery.md5.js用法示例

更新时间：2020-07-22 12:42:02 作者：startmvc

本文实例讲述了jQuerymd5加密插件jQuery.md5.js用法。分享给大家供大家参考，具体如下：使用

本文实例讲述了jQuery md5加密插件jQuery.md5.js用法。分享给大家供大家参考，具体如下：

使用方法：


$.(md5("你想要加密的字符串"));

jquery.md5.js插件代码：


/**
 * jQuery MD5 hash algorithm function
 * 
 * <code>
 * Calculate the md5 hash of a String 
 * String $.md5 ( String str )
 * </code>
 * 
 * Calculates the MD5 hash of str using the » RSA Data Security, Inc. MD5 Message-Digest Algorithm, and returns that hash. 
 * MD5 (Message-Digest algorithm 5) is a widely-used cryptographic hash function with a 128-bit hash value. MD5 has been employed in a wide variety of security applications, and is also commonly used to check the integrity of data. The generated hash is also non-reversable. Data cannot be retrieved from the message digest, the digest uniquely identifies the data.
 * MD5 was developed by Professor Ronald L. Rivest in 1994. Its 128 bit (16 byte) message digest makes it a faster implementation than SHA-1.
 * This script is used to process a variable length message into a fixed-length output of 128 bits using the MD5 algorithm. It is fully compatible with UTF-8 encoding. It is very useful when u want to transfer encrypted passwords over the internet. If you plan using UTF-8 encoding in your project don't forget to set the page encoding to UTF-8 (Content-Type meta tag). 
 * This function orginally get from the WebToolkit and rewrite for using as the jQuery plugin.
 * 
 * Example
 * Code
 * <code>
 * $.md5("I'm Persian."); 
 * </code>
 * Result
 * <code>
 * "b8c901d0f02223f9761016cfff9d68df"
 * </code>
 * 
 * @alias Muhammad Hussein Fattahizadeh < muhammad [AT] semnanweb [DOT] com >
 * @link http://www.semnanweb.com/jquery-plugin/md5.html
 * @see http://www.webtoolkit.info/
 * @license http://www.gnu.org/licenses/gpl.html [GNU General Public License]
 * @param {jQuery} {md5:function(string))
 * @return string
 */
(function($){
 var rotateLeft = function(lValue, iShiftBits) {
 return (lValue << iShiftBits) | (lValue >>> (32 - iShiftBits));
 }
 var addUnsigned = function(lX, lY) {
 var lX4, lY4, lX8, lY8, lResult;
 lX8 = (lX & 0x80000000);
 lY8 = (lY & 0x80000000);
 lX4 = (lX & 0x40000000);
 lY4 = (lY & 0x40000000);
 lResult = (lX & 0x3FFFFFFF) + (lY & 0x3FFFFFFF);
 if (lX4 & lY4) return (lResult ^ 0x80000000 ^ lX8 ^ lY8);
 if (lX4 | lY4) {
 if (lResult & 0x40000000) return (lResult ^ 0xC0000000 ^ lX8 ^ lY8);
 else return (lResult ^ 0x40000000 ^ lX8 ^ lY8);
 } else {
 return (lResult ^ lX8 ^ lY8);
 }
 }
 var F = function(x, y, z) {
 return (x & y) | ((~ x) & z);
 }
 var G = function(x, y, z) {
 return (x & z) | (y & (~ z));
 }
 var H = function(x, y, z) {
 return (x ^ y ^ z);
 }
 var I = function(x, y, z) {
 return (y ^ (x | (~ z)));
 }
 var FF = function(a, b, c, d, x, s, ac) {
 a = addUnsigned(a, addUnsigned(addUnsigned(F(b, c, d), x), ac));
 return addUnsigned(rotateLeft(a, s), b);
 };
 var GG = function(a, b, c, d, x, s, ac) {
 a = addUnsigned(a, addUnsigned(addUnsigned(G(b, c, d), x), ac));
 return addUnsigned(rotateLeft(a, s), b);
 };
 var HH = function(a, b, c, d, x, s, ac) {
 a = addUnsigned(a, addUnsigned(addUnsigned(H(b, c, d), x), ac));
 return addUnsigned(rotateLeft(a, s), b);
 };
 var II = function(a, b, c, d, x, s, ac) {
 a = addUnsigned(a, addUnsigned(addUnsigned(I(b, c, d), x), ac));
 return addUnsigned(rotateLeft(a, s), b);
 };
 var convertToWordArray = function(string) {
 var lWordCount;
 var lMessageLength = string.length;
 var lNumberOfWordsTempOne = lMessageLength + 8;
 var lNumberOfWordsTempTwo = (lNumberOfWordsTempOne - (lNumberOfWordsTempOne % 64)) / 64;
 var lNumberOfWords = (lNumberOfWordsTempTwo + 1) * 16;
 var lWordArray = Array(lNumberOfWords - 1);
 var lBytePosition = 0;
 var lByteCount = 0;
 while (lByteCount < lMessageLength) {
 lWordCount = (lByteCount - (lByteCount % 4)) / 4;
 lBytePosition = (lByteCount % 4) * 8;
 lWordArray[lWordCount] = (lWordArray[lWordCount] | (string.charCodeAt(lByteCount) << lBytePosition));
 lByteCount++;
 }
 lWordCount = (lByteCount - (lByteCount % 4)) / 4;
 lBytePosition = (lByteCount % 4) * 8;
 lWordArray[lWordCount] = lWordArray[lWordCount] | (0x80 << lBytePosition);
 lWordArray[lNumberOfWords - 2] = lMessageLength << 3;
 lWordArray[lNumberOfWords - 1] = lMessageLength >>> 29;
 return lWordArray;
 };
 var wordToHex = function(lValue) {
 var WordToHexValue = "", WordToHexValueTemp = "", lByte, lCount;
 for (lCount = 0; lCount <= 3; lCount++) {
 lByte = (lValue >>> (lCount * 8)) & 255;
 WordToHexValueTemp = "0" + lByte.toString(16);
 WordToHexValue = WordToHexValue + WordToHexValueTemp.substr(WordToHexValueTemp.length - 2, 2);
 }
 return WordToHexValue;
 };
 var uTF8Encode = function(string) {
 string = string.replace(/\x0d\x0a/g, "\x0a");
 var output = "";
 for (var n = 0; n < string.length; n++) {
 var c = string.charCodeAt(n);
 if (c < 128) {
 output += String.fromCharCode(c);
 } else if ((c > 127) && (c < 2048)) {
 output += String.fromCharCode((c >> 6) | 192);
 output += String.fromCharCode((c & 63) | 128);
 } else {
 output += String.fromCharCode((c >> 12) | 224);
 output += String.fromCharCode(((c >> 6) & 63) | 128);
 output += String.fromCharCode((c & 63) | 128);
 }
 }
 return output;
 };
 $.extend({
 md5: function(string) {
 var x = Array();
 var k, AA, BB, CC, DD, a, b, c, d;
 var S11=7, S12=12, S13=17, S14=22;
 var S21=5, S22=9 , S23=14, S24=20;
 var S31=4, S32=11, S33=16, S34=23;
 var S41=6, S42=10, S43=15, S44=21;
 string = uTF8Encode(string);
 x = convertToWordArray(string);
 a = 0x67452301; b = 0xEFCDAB89; c = 0x98BADCFE; d = 0x10325476;
 for (k = 0; k < x.length; k += 16) {
 AA = a; BB = b; CC = c; DD = d;
 a = FF(a, b, c, d, x[k+0], S11, 0xD76AA478);
 d = FF(d, a, b, c, x[k+1], S12, 0xE8C7B756);
 c = FF(c, d, a, b, x[k+2], S13, 0x242070DB);
 b = FF(b, c, d, a, x[k+3], S14, 0xC1BDCEEE);
 a = FF(a, b, c, d, x[k+4], S11, 0xF57C0FAF);
 d = FF(d, a, b, c, x[k+5], S12, 0x4787C62A);
 c = FF(c, d, a, b, x[k+6], S13, 0xA8304613);
 b = FF(b, c, d, a, x[k+7], S14, 0xFD469501);
 a = FF(a, b, c, d, x[k+8], S11, 0x698098D8);
 d = FF(d, a, b, c, x[k+9], S12, 0x8B44F7AF);
 c = FF(c, d, a, b, x[k+10], S13, 0xFFFF5BB1);
 b = FF(b, c, d, a, x[k+11], S14, 0x895CD7BE);
 a = FF(a, b, c, d, x[k+12], S11, 0x6B901122);
 d = FF(d, a, b, c, x[k+13], S12, 0xFD987193);
 c = FF(c, d, a, b, x[k+14], S13, 0xA679438E);
 b = FF(b, c, d, a, x[k+15], S14, 0x49B40821);
 a = GG(a, b, c, d, x[k+1], S21, 0xF61E2562);
 d = GG(d, a, b, c, x[k+6], S22, 0xC040B340);
 c = GG(c, d, a, b, x[k+11], S23, 0x265E5A51);
 b = GG(b, c, d, a, x[k+0], S24, 0xE9B6C7AA);
 a = GG(a, b, c, d, x[k+5], S21, 0xD62F105D);
 d = GG(d, a, b, c, x[k+10], S22, 0x2441453);
 c = GG(c, d, a, b, x[k+15], S23, 0xD8A1E681);
 b = GG(b, c, d, a, x[k+4], S24, 0xE7D3FBC8);
 a = GG(a, b, c, d, x[k+9], S21, 0x21E1CDE6);
 d = GG(d, a, b, c, x[k+14], S22, 0xC33707D6);
 c = GG(c, d, a, b, x[k+3], S23, 0xF4D50D87);
 b = GG(b, c, d, a, x[k+8], S24, 0x455A14ED);
 a = GG(a, b, c, d, x[k+13], S21, 0xA9E3E905);
 d = GG(d, a, b, c, x[k+2], S22, 0xFCEFA3F8);
 c = GG(c, d, a, b, x[k+7], S23, 0x676F02D9);
 b = GG(b, c, d, a, x[k+12], S24, 0x8D2A4C8A);
 a = HH(a, b, c, d, x[k+5], S31, 0xFFFA3942);
 d = HH(d, a, b, c, x[k+8], S32, 0x8771F681);
 c = HH(c, d, a, b, x[k+11], S33, 0x6D9D6122);
 b = HH(b, c, d, a, x[k+14], S34, 0xFDE5380C);
 a = HH(a, b, c, d, x[k+1], S31, 0xA4BEEA44);
 d = HH(d, a, b, c, x[k+4], S32, 0x4BDECFA9);
 c = HH(c, d, a, b, x[k+7], S33, 0xF6BB4B60);
 b = HH(b, c, d, a, x[k+10], S34, 0xBEBFBC70);
 a = HH(a, b, c, d, x[k+13], S31, 0x289B7EC6);
 d = HH(d, a, b, c, x[k+0], S32, 0xEAA127FA);
 c = HH(c, d, a, b, x[k+3], S33, 0xD4EF3085);
 b = HH(b, c, d, a, x[k+6], S34, 0x4881D05);
 a = HH(a, b, c, d, x[k+9], S31, 0xD9D4D039);
 d = HH(d, a, b, c, x[k+12], S32, 0xE6DB99E5);
 c = HH(c, d, a, b, x[k+15], S33, 0x1FA27CF8);
 b = HH(b, c, d, a, x[k+2], S34, 0xC4AC5665);
 a = II(a, b, c, d, x[k+0], S41, 0xF4292244);
 d = II(d, a, b, c, x[k+7], S42, 0x432AFF97);
 c = II(c, d, a, b, x[k+14], S43, 0xAB9423A7);
 b = II(b, c, d, a, x[k+5], S44, 0xFC93A039);
 a = II(a, b, c, d, x[k+12], S41, 0x655B59C3);
 d = II(d, a, b, c, x[k+3], S42, 0x8F0CCC92);
 c = II(c, d, a, b, x[k+10], S43, 0xFFEFF47D);
 b = II(b, c, d, a, x[k+1], S44, 0x85845DD1);
 a = II(a, b, c, d, x[k+8], S41, 0x6FA87E4F);
 d = II(d, a, b, c, x[k+15], S42, 0xFE2CE6E0);
 c = II(c, d, a, b, x[k+6], S43, 0xA3014314);
 b = II(b, c, d, a, x[k+13], S44, 0x4E0811A1);
 a = II(a, b, c, d, x[k+4], S41, 0xF7537E82);
 d = II(d, a, b, c, x[k+11], S42, 0xBD3AF235);
 c = II(c, d, a, b, x[k+2], S43, 0x2AD7D2BB);
 b = II(b, c, d, a, x[k+9], S44, 0xEB86D391);
 a = addUnsigned(a, AA);
 b = addUnsigned(b, BB);
 c = addUnsigned(c, CC);
 d = addUnsigned(d, DD);
 }
 var tempValue = wordToHex(a) + wordToHex(b) + wordToHex(c) + wordToHex(d);
 return tempValue.toLowerCase();
 }
 });
})(jQuery);

或者点击此处本站下载jquer.md5.js源码。

简单测试示例：


<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<title>www.jb51.net jQuery md5加密</title>
<script src="http://libs.baidu.com/jquery/2.0.0/jquery.min.js"></script>
<script type="text/javascript" src="jquery.md5.js"></script>
<script type="text/javascript">
alert($.md5("www.jb51.net"));
</script>
</head>
<body>
</body>
</html>

带入jquery.md5.js到上述示例中，使用在线HTML/CSS/JavaScript代码运行工具：http://tools.jb51.net/code/HtmlJsRun，运行代码可得到如下结果：